Ceph Filesystem Plugin Configuration

Using a Rancher HA cluster v2.4.5 we utilize the Ceph Filesystem as our storage-platform for our maintained K8s clusters. Therefor we are looking for a setting that allows the Ceph monitors to be adjusted within the Ceph plug-in. This is necessary, for example, if servers are removed or added.
So, do anybody know how a persitent volume can be adjusted within the Ceph plugin to match a new cluster-constellation (especially to change the monitors to other ceph-nodes)?
(Apparently there is no way to do this via the ui.)